/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/MeshSelectionTool.h
void CalculateVertexROI ( const [FBrushStampData](API\Runtime\InteractiveToolsFramework\BaseTools\FBrushStampData) & Stamp, [TArray](API\Runtime\Core\Containers\TArray)< int > & VertexROI )